Question

Ammonia gas has a molar mass of approximately 17 grams per mole. at 290k and 1.2 atm, a sample of ammonia has a volume of 3.7 l. in three to five sentences, explain how you can find the mass of the ammonia. then, given r=0.0821lâ‹…atmmolâ‹…k, calculate the mass.

Answer 1

To find the mass of ammonia gas, use the ideal gas law to determine the number of moles and then multiply by the molar mass.

Step-by-step explanation:

To find the mass of the ammonia gas, we can use the ideal gas law, which states that PV = nRT, where P is the pressure, V is the volume, n is the number of moles, R is the ideal gas constant, and T is the temperature in Kelvin. Rearranging the equation, we have n = PV/RT. We can then use the molar mass of ammonia to convert moles to grams using the formula mass = moles * molar mass.

Given the values for pressure, volume, temperature, and the ideal gas constant, we can substitute them into the equation. Calculating the value of n, we can then multiply it by the molar mass of ammonia to find the mass of the gas.

Answer 2

To find the mass of ammonia, use the ideal gas law equation to find the number of moles, and then multiply by the molar mass of ammonia.

Step-by-step explanation:

To find the mass of the ammonia, you can use the ideal gas law equation which is PV = nRT. Rearrange the equation to solve for n (moles): n = PV / RT. Then, multiply the number of moles by the molar mass of ammonia (17 g/mol) to find the mass. In this case, the volume is 3.7 L, the pressure is 1.2 atm, and the temperature is 290 K. So, n = (1.2 atm x 3.7 L) / (0.0821 L.atm/mol.K x 290 K) = 0.181 mol. Therefore, the mass of the ammonia is 0.181 mol x 17 g/mol = 3.08 g.